Yang Jun, Lu Fuzhi, Kostiuk Larry W, Kwok Daniel Y
Nanoscale Technology and Engineering Laboratory, Department of Mechanical Engineering, University of Alberta, Edmonton, AB T6G 2G8, Canada.
J Nanosci Nanotechnol. 2005 Apr;5(4):648-52. doi: 10.1166/jnn.2005.059.
We show, by natural occurring phenomena of charge separation near the solid-liquid interface in microchannels, that electricity can be generated by forcing water through a ceramic rod with no moving part and emission. A single hand push on a syringe is our source of power which easily generates a streaming potential of over 20 V and a streaming current of 30 microA. By means of streaming potentials, two capacitors were charged and discharged alternatively to light-up two Light-Emitting-Diodes in every ten seconds. From our specific choice of liquid/solid pair, an efficiency of 0.8% was obtained. A mobile-ion-drain method is also demonstrated to increase the streaming potential.
我们通过微通道中固液界面附近自然发生的电荷分离现象表明，在没有运动部件和排放的情况下，迫使水通过陶瓷棒可以发电。用手单次推动注射器就是我们的动力源，它能轻松产生超过20 V的流动电势和30 μA的流动电流。借助流动电势，两个电容器交替充电和放电，每十秒钟点亮两个发光二极管。通过我们对液/固对的特定选择，获得了0.8%的效率。还展示了一种移动离子排放方法来增加流动电势。
